These are the packages that would be merged, in order:

Calculating dependencies ... done!
Dependency resolution took 0.99 s (backtrack: 0/20).

[ebuild  N     ] net-libs/gupnp-av-0.14.5:0/3::gentoo  USE="-gtk-doc -introspection -vala" 1189 KiB

Total: 1 package (1 new), Size of downloads: 1189 KiB